The
appointed body of the Universal House of Justice in its first
stage, once and for all, hereby resolves that:

Based upon the Explicit Holy Text and the clear and manifest
proofs and evidences contained within, and in accordance with,
the revealed statements of Baha'u'llah, 'Abdu'l-Baha, and
Shoghi Effendi, the Universal House of Justice shall be comprised
of both men and women.

And
furthermore, that:

The membership of both men and women on the Universal House
of Justice is constituted within the Baha'i Administrative
Order, that is, the membership of both men and women on the
Universal House of Justice forms an irremovable part of the
constitution of the Universal House of Justice in all its
stages.

And
therefore, that:

In conformity with, and in enforcement of, the Explicit Holy
Text, if women are not elected to the Universal House of Justice
then that election shall be declared invalid.

[Approved
this eighteenth day of Mulk in the year one hundred and fifty-two
of the Baha'i Era (February 24, 1996)]

"The descendant of King David must be the President (Executive Branch) of Baha'u'llah's
Universal House of Justice so we can recognize the true UHJ from fakes, frauds, and imitations.
(Will and Testament of 'Abdu'l-Baha, page 15)